raptor vs wildfowl

raptor

noun
  • A bird of prey. 

  • One of the dromaeosaurs, a family of carnivorous dinosaurs having tearing claws on the hind legs. 

wildfowl

noun
  • Waterfowl. 

  • Any wild bird such as ducks, geese or swans. 

verb
  • To hunt wildfowl. 

How often have the words raptor and wildfowl occurred in a corpus of books? (source: Google Ngram Viewer )